Attention

Following the recent operating system upgrade, software listings and module load commands now reflect the upgraded system. Some examples and notices are still being updated and may contain outdated guidance.

fftw

FFTW is a C subroutine library for computing the discrete Fourier transform (DFT) in one or more dimensions, of arbitrary input size, and of both real and complex data (as well as of even/odd data, i.e. the discrete cosine/sine transforms or DCT/DST).

Usage

After connecting to Stanage (see Establishing a SSH connection), start an interactive session with the following command:

srun --pty bash -i

To make this library available, run one the following:

module load FFTW/3.3.10-GCC-15.2.0
module load FFTW/3.3.10-GCC-14.3.0
module load FFTW/3.3.10-GCC-14.2.0
module load FFTW/3.3.10-GCC-13.3.0
module load FFTW/3.3.10-GCC-13.2.0
module load FFTW/3.3.10-GCC-12.3.0
module load FFTW/3.3.10-GCC-12.2.0

module load FFTW/3.3.10-GCC-15.2.0
module load FFTW/3.3.10-GCC-14.3.0
module load FFTW/3.3.10-GCC-12.3.0
module load FFTW/3.3.10-GCC-12.2.0

gompi versions are a subset of the foss toolchain and also load GCC and OpenMPI. See matching foss toolchains.
gompic versions are a subset of the fosscuda toolchain and also load GCC, OpenMPI and CUDA.

Also see imkl-fftw which is a library that combines FFTW library with Intel’s Math Kernel Library (IMKL) to provide optimized FFT routines that are specifically optimized for Intel processors.